Rispri LabsENGINEERING A CIRCULAR FUTURE

SAFE DRINKING WATER / 11

Ready: level 7 of 9Tested in the fieldSchool or small town

Large iron filter for schools and small towns.
Iron-free water at school and town scale.

A school, hostel or small town needs a lot of iron-free water every day. Water is cleaned in three stages that turn iron into rust and filter it out.

Discuss your problem See how it works
YELLOW WATER, IRON AND MUDDY WATERDelivered by Rispri Labs
Yellow water, iron and muddy water
Yellow water, iron and muddy water

What it achieves

The key numbers.

3,000 to 3,500 L/h

of treated water.

12 mg/L

iron handled.

Under 2 paise

per litre.

Problem and fix

The problem this solves.

  1. 01
    The problem

    A school, hostel or small town needs a lot of iron-free water every day.

    How it is fixed

    Water is cleaned in three stages that turn iron into rust and filter it out. The filter material lasts a long time and is cleaned by backwash.

How it works

Step by step.

  1. 1

    Oxidise

    Iron is turned into rust in the first stage.

  2. 2

    Filter

    Two more stages catch the rust and fine particles.

  3. 3

    Backwash

    Filter media are cleaned by backwash and reused.

Key features

Why it works well.

3,000 to 3,500 litres an hour. Handles iron up to about 12 mg/L at under 2 paise a litre.

  • High flowEnough for a school, hostel or small town.
  • Long-life mediaCleaned and reused, not thrown away.
  • Three stagesSteady results even when iron levels change.

At a glance

The details.

Output3,000 to 3,500 litres an hour
Iron handledUp to about 12 mg/L
Running costUnder 2 paise a litre
Ready levelLevel 7 of 9 (tested in the field)
ScaleSchool or small town

Costs are indicative and change with your water, site and plant size. We confirm them after testing a sample.

Where it is used

Who it is for.

  • Schools and hostels
  • Small towns
  • Housing colonies

Questions

Frequently asked questions.

Is this technology proven?

Yes. It is at ready level 7 of 9, which means: tested in the field. 3,000 to 3,500 litres an hour. Handles iron up to about 12 mg/L at under 2 paise a litre.

What does it cost to run?

About under 2 paise a litre. The exact figure depends on your water and the size of the plant. We confirm it after testing a sample.

Can we try it on our own water first?

Yes. We test a sample in our NABL-accredited lab and, where it helps, run a small trial on your site before you invest in a full plant.

Do you supply and install it?

Yes. We design, supply, install and start up the system, train your staff, and our lab checks the treated water.

Yellow water, iron and muddy water

Ready: level 7 to 9 of 9Iron removal plant on the hand pumpPeople have stopped using the village hand pump because the water turns yellow and stains everything.Ready: level 6 to 8 of 9Home iron filter, 15 litresA home or anganwadi gets yellow water from its tube well.Ready: level 9 of 9Baked clay filter for iron and muddy waterVillage water is both muddy and full of iron, and families cannot keep buying new cartridges.Problem guideYellow Water and Red StainsIron makes people give up on a safe hand pump. A simple filter fixes it for a few paise a litre.

THE NEXT STEP

Fix it on
your own site.

Send us a water sample or a test report. We will check it, confirm this method fits and tell you what it costs to run.

Discuss your problem
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